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9 pin miniature preamp tube (Amplification Factor =100). This is the ubiquitous Chinese 12AX7 with premium selection. The gain is high and the German Tube Amp Doctor must be filtering out the noisiest ones. Premium selected by Tube Amp Doctor, this is a quiet Chinese 12AX7 with high gain that will bring a dull sounding amp back to life.

TAD has the remakes of the all time favorite 6L6 classics of RCA and GE. The TAD 6L6WGC-STR has warm lower mids and silky top end; exactly like the classic GE version of the 50s and 60s. The complex midrange and sweet heights are dedicated to excellence in a class of its own. The perfect choice for vintage amps like the Bassman, Twin or Super Reverb.

Tube Amp Doctor 5AR4 Rectifier, Premium Selected A faithful reproduction of the Mullard/VALVO GZ34. Pure power and the typical sag is the distinguishing characteristic of the most popular guitar amps of the 1960s guitar heroes till today.

What sets the TAD EL84 apart from other tubes is its heavy duty construction, featuring a thick glass envelope as well as premium cathode and plate materials and gold grid wire. This is a great replacement for any EL84 based amplifier.
Tube measurements are as follows:

Height: 2.75” (without pins)*

Diameter: 0.87”*

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.

Octal power tube (Max Plate Watts = 25W) Sensational new high-gain (Gm) EL34 tube with very dynamic tone. Extra strong military grade construction with gold plate grid. Perfect for High-End HiFi and best choice for all Marshall®, Hiwatt®, Orange® etc. to achieve that big tone they became famous for. Very close to the legendary UK made Mullard EL34. The TAD EL34B-STR can replace any 6CA7 or KT77.

Octal power tube (Max Plate Watts = 30W) TAD 6L6GC-STR RCA-Style black-plate "TAD has the remakes of the all times favorite 6L6 classics of RCA and GE. The TAD 6L6GC-STR is the perfect choice for the tone of the rock legends with powerful deep bass and clear but pleasing airy top end.

The TAD 7025 WA delivers full gain with smooth top end. No microphonic issues even with the most sensitive preamps. The 7025 WA supports a fat midrange and creates a bold tone with lots of overtones. Played clean the TAD 7025 WA delivers a warm liquid tone which is very responsive to dynamic playing. Overdriven the 7025 WA provides lots of sustain with well defined mid-range punch.

The new TAD ECC83 WA Selected provides a stunning warm tone, thick midrange and sweet natural overtone harmonics. It has been designed by TAD with triple mica construction for low noise performance. Perfect for clean or moderate gain preamps as well as for high-gain amps from V2 position.
It's great dynamics, low noise operation and balanced warm tone makes the TAD ECC83 WA to be an excellent all-rounder with great value for money.

This all new TAD 6V6GT-STR combines the exceptionally sweet voiced NOS 6V6GT like the RCA or GE 6V6GTY with up to date demand to withstand the higher operating voltages due to raised AC supply. Surprisingly tight bass which you would not expect except with the very best choice of real NOS 6V6GT treasures. TAD recommends the TAD 6V6GT-STR for all 6V6 applications where a powerful but sweet tone is desired; Works great in Single Ended Class A Amps like the Fender -Tweed- Champ, Vibro-Champ, Fender Champion 600 or the Univalve.

The all-new TAD 12BH7A-STR combines the best sonic and mechanical performance of the NOS RCA black plate with advantages of the GE version. A maximum of reliability with outstanding tonal quality makes the new balanced selected TAD 12BH7A-STR the first choice for Ampeg SVTs, the Blackstar HT-5 and high-end applications.